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특허 상세정보

System and method for efficiently performing two-way ranging to determine the location of a wireless node in a communications network

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04B-007/212   
미국특허분류(USC) 370/348; 455/434; 455/450
출원번호 US-0973799 (2001-10-11)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Gardner Carton & Douglas LLP
인용정보 피인용 횟수 : 49  인용 특허 : 99
초록

A system and method for reducing the number of transmissions required for a node in a communications network to range other nodes in the network, while also enabling the node to continuously monitor the reservation channel during the ranging process without the use of a second receiver, and to indicate to the ranged node and other nodes in the network that the ranging node and the ranged node are not tuning to a data channel to perform the ranging, to thus enable the node to more efficiently determine its geographic location. The system and method furthe...

대표
청구항

1. A communication node, adapted for use in a communications network, comprising:a transceiver, adapted to transmit and receive messages to and from other nodes in said network over at least one of a plurality of shared data channels, and being tunable to a reservation channel to monitor channel access reservation messages transmitted by said other nodes in said network; anda controller, adapted to control said transceiver to transmit a range request message to at least one other of said nodes in said network over said reservation channel and to receive ...

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